becausebirds:This GIF shows how the toucan releases heat using its beak to cool itself off.The touca
becausebirds:This GIF shows how the toucan releases heat using its beak to cool itself off.The toucan beak isn’t just beautiful, it’s also an adjustable thermal radiator that the bird uses to warm and cool itself. When the bird is hot, the blood vessels in their beak open up to allow more circulation to enable heat to escape. Birds can’t sweat so evolution has come up with some life hacks to get the job done. [video] -- source link